Resonant x-ray spectroscopies on CrSBr: Probing the electronic structure through chromium d-d excitations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43933858" target="_blank" >RIV/60461373:22310/25:43933858 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.aps.org/prb/abstract/10.1103/pdvz-6cpg" target="_blank" >https://journals.aps.org/prb/abstract/10.1103/pdvz-6cpg</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/pdvz-6cpg" target="_blank" >10.1103/pdvz-6cpg</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Resonant x-ray spectroscopies on CrSBr: Probing the electronic structure through chromium d-d excitations

Popis výsledku v původním jazyce

We investigate the Cr electronic structure and excitations in CrSBr, a layered magnetic semiconductor, using a combination of resonant x-ray spectroscopic techniques. X-ray absorption spectroscopy and resonant inelastic x-ray scattering (RIXS) spectra collected at the Cr L2,3 edges reveal significant linear dichroism, which arises from the distorted octahedral environment surrounding the Cr3+ ions. The origin of the bright excitons observed in this compound is examined through a comparison of the d-d excitations identified in the RIXS spectra, the x-ray excited optical luminescence spectra, and previously reported optical spectroscopic and theoretical studies. To further understand these phenomena, we develop a multiplet model based on a crystal electric field approach that accounts for the local environment of Cr ions. This model successfully reproduces several experimental features, while also suggesting strong hybridization effects between Cr 3d orbitals and ligands that are not fully captured by the present framework. These findings advance our understanding of the electronic structure and excitonic behavior in CrSBr and provide a foundation for future in situ and operando studies of CrSBr-based devices for spintronic and optoelectronic applications.

Název v anglickém jazyce

Resonant x-ray spectroscopies on CrSBr: Probing the electronic structure through chromium d-d excitations

Popis výsledku anglicky

We investigate the Cr electronic structure and excitations in CrSBr, a layered magnetic semiconductor, using a combination of resonant x-ray spectroscopic techniques. X-ray absorption spectroscopy and resonant inelastic x-ray scattering (RIXS) spectra collected at the Cr L2,3 edges reveal significant linear dichroism, which arises from the distorted octahedral environment surrounding the Cr3+ ions. The origin of the bright excitons observed in this compound is examined through a comparison of the d-d excitations identified in the RIXS spectra, the x-ray excited optical luminescence spectra, and previously reported optical spectroscopic and theoretical studies. To further understand these phenomena, we develop a multiplet model based on a crystal electric field approach that accounts for the local environment of Cr ions. This model successfully reproduces several experimental features, while also suggesting strong hybridization effects between Cr 3d orbitals and ligands that are not fully captured by the present framework. These findings advance our understanding of the electronic structure and excitonic behavior in CrSBr and provide a foundation for future in situ and operando studies of CrSBr-based devices for spintronic and optoelectronic applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

PHYSICAL REVIEW B

ISSN

2469-9950

e-ISSN

2469-9969

Svazek periodika

112

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

nestránkováno

Kód UT WoS článku

001564197900007

EID výsledku v databázi Scopus

2-s2.0-105020856971